Silage truck drive train trouble

BoxCarKidd

Active member
Having more driveshaft and clutch problems after changing duel mudders to super single tractor lug tires. Now the countershaft housing exploded on one.
While replacing the transmission will replace the clutch. It is a ceramic button 14" and considering going to a fiber disc because it is not over 300 HP.
Trans is an 8609 and looking for an economical upgrade also. Any thoughts and or experience appreciated.
 

Truck Shop

Well-known member
What engine is it 466? And you say counter shaft housing exploded? Are you talking about the rear section or the front main case? That transmission
is rated for 800 ft lbs torque. In my opinion a fiber clutch is a bad way to go, if your having clutch issues it will take that fiber or rag clutch out in no
time. Eaton makes a variety of different torque rated clutches in 14". I am surprised you haven't snapped some axles with those tires. Probably the
the other problems have saved the drive units. Just my two cents.

Truck Shop
 

BoxCarKidd

Active member
It is an L10 with no tag.
The 8609 has an extended housing over the countershafts like big brothers with rear OD or LL but is still a direct 9.
All the friction surfaces were blue. Thank that came from driver slipping clutch in bad conditions and ceramics can't stand much of that. These trucks have a frame mounted front hitch so a 400 HP tractor with a hydraulic quick hitch can come drag them away or along. Those clutches held up well with engines up to Cummings 290's. Wondered if in rag clutch might hold up better to drivers slipping them trying to get going. I always lean to button clutches with higher power or load but never did exactly this, don't consider it high power. Would rather loose a clutch than a transmission but still expect it to last awhile.
Mr. Check Signature is going back with a 8609 because I could not find a better option, right now, without spending an extra $2000.
 
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td25c

Well-known member
The Kevlar disk sounds like a good option .

Seems like the fiber disks were better for slipping when needed .

Button style was hard to slip but lasted longer .
 
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